blob: 60b3a1738f1bc353646d4fd80b139c1a98c7a31e (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
|
# frozen_string_literal: true
module Gitlab
module DiscussionsDiff
class FileCollection
include Gitlab::Utils::StrongMemoize
include Enumerable
def initialize(collection)
@collection = collection
end
def each(&block)
@collection.each(&block)
end
# Returns a Gitlab::Diff::File with the given ID (`unique_identifier` in
# Gitlab::Diff::File).
def find_by_id(id)
diff_files_indexed_by_id[id]
end
# Writes cache and preloads highlighted diff lines for
# highlightable object IDs, in @collection.
#
# - Highlight cache is written just for uncached diff files
# - The cache content is not updated (there's no need to do so)
def load_highlight
ids = highlightable_collection_ids
return if ids.empty?
cached_content = read_cache(ids)
uncached_ids = ids.select.each_with_index { |_, i| cached_content[i].nil? }
mapping = highlighted_lines_by_ids(uncached_ids)
HighlightCache.write_multiple(mapping) if mapping.any?
diffs = diff_files_indexed_by_id.values_at(*ids)
diffs.zip(cached_content).each do |diff, cached_lines|
next unless diff && cached_lines
diff.highlighted_diff_lines = cached_lines
end
end
private
def highlightable_collection_ids
each.with_object([]) { |file, memo| memo << file.id unless file.resolved_at }
end
def read_cache(ids)
HighlightCache.read_multiple(ids)
end
def diff_files_indexed_by_id
strong_memoize(:diff_files_indexed_by_id) do
diff_files.index_by(&:unique_identifier)
end
end
def diff_files
strong_memoize(:diff_files) { map(&:raw_diff_file) }
end
# Processes the diff lines highlighting for diff files matching the given
# IDs.
#
# Returns a Hash with { id => [Array of Gitlab::Diff::line], ...]
def highlighted_lines_by_ids(ids)
diff_files_indexed_by_id.slice(*ids).transform_values do |file|
file.highlighted_diff_lines.map(&:to_hash)
end
end
end
end
end
|
